Objective To study the clinical characteristics and outcome of Pneumocystis carinii pneumonia(PCP) in patients with chronic kidney diseases.Methods Clinical data of 8 cases of chronic kidney diseases complicated with ...Objective To study the clinical characteristics and outcome of Pneumocystis carinii pneumonia(PCP) in patients with chronic kidney diseases.Methods Clinical data of 8 cases of chronic kidney diseases complicated with PCP(excluding renal transplant patients) were examined retrospectively.Results The most common presenting symptoms at admission were fever(100%),cough without or with a little sputum(87.5%),and exertional dyspnea(75%).Beside these,they complained of chest tightness,fatigue,sweating and chills.Six patients(75%) presented with hypoxemia were diagnosed with type 1 respiratory failure during the course of illness.The most common CT feature was bilateral patchy areas of ground-glass opacities.Five patients had peripheral blood lymphocyte count less than 1 ×109/L.Four patients had CD4 cell count less than 200/mm3.Serum LDH level was elevated in 5 patients(582±222.55).Among the 8 patients,2 patients died within 20 days of PCP diagnosis.Conclusion Pneumocystis carinii pneumonia is an opportunistic and serious complication in chronic kidney disease patients treated with immunosuppressants.The disease progression is fast and patients with respiratory failure have a high mortality rate.Early diagnosis and appropriate treatment are important for better prognosis.展开更多
Objective:To investigate the clinical features of R-CHOP regimen in the treatment of non-Hodgkin^lymphoma with Pneumocystis carinii pneumonia(PCP)in order to improve the understanding of PCP and the side effects of Ri...Objective:To investigate the clinical features of R-CHOP regimen in the treatment of non-Hodgkin^lymphoma with Pneumocystis carinii pneumonia(PCP)in order to improve the understanding of PCP and the side effects of Rituxan.Methods:A retrospective analysis of 90 patients with non-Hodgkin’s lymphoma treated with R-CHOP chemotherapy in our hospital from November 2015 to November 2020,of which 15(16.7%)patients,combined with PCP clinical data,including clinical symptoms,physical signs,chest imaging examination and treatment data were used for to analysis and summarization.Results:The clinical features of R-CHOP chemotherapy combined with PCP were fever,cough,and sputum.Some patients had fewer clinical symptoms.Common imaging manifestations were double lung membrane glass shadow,patchy shadow,and flocculent shadow.It can occur in all clinical stages,and the incidence of late stage is high,and there is no clear correlation with bone marrow suppression.Pneumocystis was found in 2 cases of sputum,and the rest of the patients were clinically diagnosed.The main therapeutic drugs are sulfamethoxazole(8/15),compound sulfamethoxazole(6/15),clindamycin(1/15,sulfa drug allergy),and adrenal cortex hormones(4/15).Fourteen cases were cured and 1 case died.Conclusion:The incidence of R-CHOP in advanced non-Hodgkin^lymphoma of PCP is high.Patients with clinical use of R-CHOP chemotherapy will encounter fever,cough,chest computed tomography(CT)film glass shadow,and diffuse patch shadow.Patients should be alert to the possibility of PCP and take sulfonamides as soon as possible for medical treatment.展开更多
Despite advances in transplantation techniques and the quality of post-transplantation care, opportunistic infections remain an important cause of complications. Pneumocystis jirovecii(P. jirovecii) is an opportunisti...Despite advances in transplantation techniques and the quality of post-transplantation care, opportunistic infections remain an important cause of complications. Pneumocystis jirovecii(P. jirovecii) is an opportunistic organism, represents an important cause of infections in heart transplantation patients. Almost 2% to 10% of patients undergoing cardiac transplantation have Pneumocystis pneumonia. Prophylaxis is essential after surgery. Various prophylaxis regimes had been defined in past and have different advantages. Trimethoprim/sulfamethoxazole(TMP/SMX) has a key role in prophylaxis against P. jirovecii. Generally, although TMP/SMX is well tolerated, serious side effects have also been reported during its use. Pentamidine is an alternative prophylaxis agent when TMP/SMX cannot be tolerated by the patient. Structurally, pentamidine is an aromatic diamidine compound with antiprotozoal activity. Since it is not effectively absorbed from the gastrointestinal tract, it is frequently administered via the intravenous route. Pentamidine can alternatively be administered through inhalation at a monthly dose in heart transplant recipients. Although, the efficiency and safety of this drug is well studied in other types of solid organ transplantations, there are only few data about pentamidine usage in heart transplantation. We sought to evaluate evidence-based assessment of the use of pentamidine against P. jirovecii after heart transplantation.展开更多
Objective To understand the interaction between surfactant proteins and pneumocystis carinii pneumonia (PCP),and the impact of corticosteriods on surfactant proteins.Methods We established rat models of PCP and bacter...Objective To understand the interaction between surfactant proteins and pneumocystis carinii pneumonia (PCP),and the impact of corticosteriods on surfactant proteins.Methods We established rat models of PCP and bacterial pneumonia induced by subcutaneous injection of 25mg cortisone acetate.At 8- 12 wk,the bronchoalveolar lavage fluid(BALF)of rats was collected.Total nucleated cells of BALF were counted and differentiated,and the concentrations of surfactant protein A(SP-A)and surfactant protein D(SP-D)were measured by immunoblotting assay.The rats were divided into three immunosuppressive groups and a normal control group.Group I,normal control(n = 6),consisted of healthy SD rats;group Ⅱ,negative control(n = 6),consisted of rats with cortisone acetate injection for over 8 wk without lung infection;group Ⅲ,bacterial pneumonia(n = 11),rats were injected with cortisone acetate over 8 wk that resulted in bacterial pneumonia without other pathogens isolated;and group Ⅳ,PCP(n = 14),rats with injected cortisone acetate for 8 - 12 wk and developed PCP without other pathogens isolated.Results Our results indicated that the total cell count in BALF in the negative control group was lower than that in the normal control group(P ＜ 0.001).During PCP infection,the total cell count and the percentage of polymorphonuclearcytes(PMNs)in BALF were significantly increased(P ＜ 0.01),but were lower than those in the bacterial pneumonia group.The concentration of SP-A of BALF in PCP(45.1 ± 22.1 μg/ml)was significantly increased in comparison with that in the negative control(16.2 ± 9.9 μg/ml,P ＜ 0.05)and bacterial pneumonia groups(6.2 ± 5.6 μg/ml,P ＜ 0.001).We also found that the relative content of SP-D was significantly higher in PCP(24249 ±4780 grey values)than that in the negative control (13 384 ± 2887 grey values,P ＜ 0.001)and that in bacterial pneumonia(11 989 ± 2750 grey values,P＜0.001).SP-A and SP-D were also higher in the moderate to heavy group of PCP than those seen in the mild group(P ＜ 0.01,P ＜ 0.001).SP-A and SP-D were higher in the negative control group than those in the normal control group,but there was no significant difference between the 2 groups.Conclusion These results suggest that the concentrations of SP-A and SP-D in BALF are increased by pneumocystis carinii specific stimulation,but the alteration is not related to the corticosteriod usage.展开更多
文摘Objective To study the clinical characteristics and outcome of Pneumocystis carinii pneumonia(PCP) in patients with chronic kidney diseases.Methods Clinical data of 8 cases of chronic kidney diseases complicated with PCP(excluding renal transplant patients) were examined retrospectively.Results The most common presenting symptoms at admission were fever(100%),cough without or with a little sputum(87.5%),and exertional dyspnea(75%).Beside these,they complained of chest tightness,fatigue,sweating and chills.Six patients(75%) presented with hypoxemia were diagnosed with type 1 respiratory failure during the course of illness.The most common CT feature was bilateral patchy areas of ground-glass opacities.Five patients had peripheral blood lymphocyte count less than 1 ×109/L.Four patients had CD4 cell count less than 200/mm3.Serum LDH level was elevated in 5 patients(582±222.55).Among the 8 patients,2 patients died within 20 days of PCP diagnosis.Conclusion Pneumocystis carinii pneumonia is an opportunistic and serious complication in chronic kidney disease patients treated with immunosuppressants.The disease progression is fast and patients with respiratory failure have a high mortality rate.Early diagnosis and appropriate treatment are important for better prognosis.
文摘Objective:To investigate the clinical features of R-CHOP regimen in the treatment of non-Hodgkin^lymphoma with Pneumocystis carinii pneumonia(PCP)in order to improve the understanding of PCP and the side effects of Rituxan.Methods:A retrospective analysis of 90 patients with non-Hodgkin’s lymphoma treated with R-CHOP chemotherapy in our hospital from November 2015 to November 2020,of which 15(16.7%)patients,combined with PCP clinical data,including clinical symptoms,physical signs,chest imaging examination and treatment data were used for to analysis and summarization.Results:The clinical features of R-CHOP chemotherapy combined with PCP were fever,cough,and sputum.Some patients had fewer clinical symptoms.Common imaging manifestations were double lung membrane glass shadow,patchy shadow,and flocculent shadow.It can occur in all clinical stages,and the incidence of late stage is high,and there is no clear correlation with bone marrow suppression.Pneumocystis was found in 2 cases of sputum,and the rest of the patients were clinically diagnosed.The main therapeutic drugs are sulfamethoxazole(8/15),compound sulfamethoxazole(6/15),clindamycin(1/15,sulfa drug allergy),and adrenal cortex hormones(4/15).Fourteen cases were cured and 1 case died.Conclusion:The incidence of R-CHOP in advanced non-Hodgkin^lymphoma of PCP is high.Patients with clinical use of R-CHOP chemotherapy will encounter fever,cough,chest computed tomography(CT)film glass shadow,and diffuse patch shadow.Patients should be alert to the possibility of PCP and take sulfonamides as soon as possible for medical treatment.
文摘Despite advances in transplantation techniques and the quality of post-transplantation care, opportunistic infections remain an important cause of complications. Pneumocystis jirovecii(P. jirovecii) is an opportunistic organism, represents an important cause of infections in heart transplantation patients. Almost 2% to 10% of patients undergoing cardiac transplantation have Pneumocystis pneumonia. Prophylaxis is essential after surgery. Various prophylaxis regimes had been defined in past and have different advantages. Trimethoprim/sulfamethoxazole(TMP/SMX) has a key role in prophylaxis against P. jirovecii. Generally, although TMP/SMX is well tolerated, serious side effects have also been reported during its use. Pentamidine is an alternative prophylaxis agent when TMP/SMX cannot be tolerated by the patient. Structurally, pentamidine is an aromatic diamidine compound with antiprotozoal activity. Since it is not effectively absorbed from the gastrointestinal tract, it is frequently administered via the intravenous route. Pentamidine can alternatively be administered through inhalation at a monthly dose in heart transplant recipients. Although, the efficiency and safety of this drug is well studied in other types of solid organ transplantations, there are only few data about pentamidine usage in heart transplantation. We sought to evaluate evidence-based assessment of the use of pentamidine against P. jirovecii after heart transplantation.
基金ThisresearchwassupportedbygrantsfromThetrainingprojectoftheShanghaiHealthSystem (No 98BR0 3 0 )andtheShanghaiEducationCommittee (No 98QN2 7)
文摘Objective To understand the interaction between surfactant proteins and pneumocystis carinii pneumonia (PCP),and the impact of corticosteriods on surfactant proteins.Methods We established rat models of PCP and bacterial pneumonia induced by subcutaneous injection of 25mg cortisone acetate.At 8- 12 wk,the bronchoalveolar lavage fluid(BALF)of rats was collected.Total nucleated cells of BALF were counted and differentiated,and the concentrations of surfactant protein A(SP-A)and surfactant protein D(SP-D)were measured by immunoblotting assay.The rats were divided into three immunosuppressive groups and a normal control group.Group I,normal control(n = 6),consisted of healthy SD rats;group Ⅱ,negative control(n = 6),consisted of rats with cortisone acetate injection for over 8 wk without lung infection;group Ⅲ,bacterial pneumonia(n = 11),rats were injected with cortisone acetate over 8 wk that resulted in bacterial pneumonia without other pathogens isolated;and group Ⅳ,PCP(n = 14),rats with injected cortisone acetate for 8 - 12 wk and developed PCP without other pathogens isolated.Results Our results indicated that the total cell count in BALF in the negative control group was lower than that in the normal control group(P ＜ 0.001).During PCP infection,the total cell count and the percentage of polymorphonuclearcytes(PMNs)in BALF were significantly increased(P ＜ 0.01),but were lower than those in the bacterial pneumonia group.The concentration of SP-A of BALF in PCP(45.1 ± 22.1 μg/ml)was significantly increased in comparison with that in the negative control(16.2 ± 9.9 μg/ml,P ＜ 0.05)and bacterial pneumonia groups(6.2 ± 5.6 μg/ml,P ＜ 0.001).We also found that the relative content of SP-D was significantly higher in PCP(24249 ±4780 grey values)than that in the negative control (13 384 ± 2887 grey values,P ＜ 0.001)and that in bacterial pneumonia(11 989 ± 2750 grey values,P＜0.001).SP-A and SP-D were also higher in the moderate to heavy group of PCP than those seen in the mild group(P ＜ 0.01,P ＜ 0.001).SP-A and SP-D were higher in the negative control group than those in the normal control group,but there was no significant difference between the 2 groups.Conclusion These results suggest that the concentrations of SP-A and SP-D in BALF are increased by pneumocystis carinii specific stimulation,but the alteration is not related to the corticosteriod usage.
